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Add 15/18 and 21/32

15/18 + 21/32 is 143/96.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 32 is 288

    Next, find the equivalent fraction of both fractional numbers with denominator 288
  2. For the 1st fraction, since 18 × 16 = 288,
    15/18 = 15 × 16/18 × 16 = 240/288
  3. Likewise, for the 2nd fraction, since 32 × 9 = 288,
    21/32 = 21 × 9/32 × 9 = 189/288
  4. Add the two like fractions:
    240/288 + 189/288 = 240 + 189/288 = 429/288
  5. 429/288 simplified gives 143/96
  6. So, 15/18 + 21/32 = 143/96
    In mixed form: 147/96

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